Improvement in rotary pttmps



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Letters Patent No. 84,106, dated November 17, 1868.

IMPROVEMENT IN ROTARY PUMPS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom` it 'may conce/rn:

Be it known that I, GHAnLEsV. Guarire, of Duquoin, in the county of Perry, and State of Illinois, have made certain new and useful Improvements in Rota-ry Pumps; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A is a piston, having an elongated projection, V, and so fashioned that, while rotating, the arcs of its periphery come in contact and conform accurately with the arcs t' i i of the follower B. The piston A is hollow, and is proded, on the forcing side of the projection V, with an oblong slotfH, through which the fluid enters, and is discharged at the eduction-passage proper, K.

G is a vane or partition, provided witha peculiarlyshaped head, forming the follower B, the latter so shaped that the arcsJ t i come in contact and conform accurately with the arcs on -the piston A. The vane C is arranged t0 reciprocate vertically in corresponding grooves in the case and front plate respectively, forming a division between the induction and eduction-ports. The object in placing the follower' B at one side of the vane Cf, is to render the former balanced, viz, so that the uid has au equal pressure, the same. below as above, necessary iu forcing. y

D is a peculiarly-shaped trip, so arranged as to come in contact and conform with the arm \V of the valve E, when the vane G is at the bottom of its stroke, allowing the fluid-to escape. The trip D is circularshaped, so as to render unnecessary a special adjust ment of the valve E.

E is a valve, provided with a peculiarly-shaped arm,

W, so arranged as to come in contact and conform with the trip D.

G is a coil-spring, by means of which the vane C is operated, causing the follower B to press tightly against the periphery of the piston A. The upper portion of the spring G is kept in place by means of the guide F, and its lower part by being countersuuk in the septum L.

L is a septum, against which the vane C presses while operating.

S is also a septum, 'against whiclrthe vane C presses when at the bottom of its stroke, to prevent the escape of fluid while the piston A is passing its dead-point, as shown in the drawing, and also useful when used with an air-chamber. A

The piston A, follower B, vane C, and septum L, are each provided with grooves for water-packin g, as at Operation: Upon being primed in the usual manner, and operated, a vacuum is formed, when` the fluid passes in the direction indicated by tlie arrows, through the opening H and into the piston A, whence it is discharged at the eduction-passage proper, K.

The tripD does not raise the valve E when the pump is at work, bntonly when the projection V of the piston A is left at rest' directly over the follower B, necessary in allowing the iiuid to escape in freezing weather.l

What I claim as my invention, and desire to secure by LettersPateut, is

1. The-hollow cylindrical piston A, having the slotted V-form ed proj ection V, when used in combination with the follower B and vane C, as herein specified.

2. The hollow pist-on A, provided with the opening H, forming an eduetion-passage, substantially as described.

3. The vafue G, having an enlarged head, forming the follower B, as specified, as arranged in relation to the trip D and valve E, as herein described and for the purpose specified.

' CHARLES V. GENUSG.

Vitnesses:

A. O'. GENUNG, WM. C. Newsom. 

